To Replace Mower Blade Drive Belt; Side-To-Side Adjustment; Front-To-Back Adjustment - Craftsman 917.270723 Owner's Manual

17.0 hp electric start 42" mower automatic lawn tractor
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SIDE-TO-SIDE ADJUSTMENT
• Raise mowerto its highest position.
At the midpoint of both sides of mower,
measure
height from bottom
edge of
mower to ground.
Distance "A" on
both sides of mower should be the
same or within 1/4" of each other.
• If adjustment is necessary,
make
adjustment on one side of mower only.
• To raise one side of mower, tighten lift
link adjustment
nut on that side.
• To lower one side of mower, loosen lift
link adjustment
nut on that side.
NOTE:Each
full turn of adjustment nut
will change mower height about 1/8".
• Recheck measurements
after adjust-
ing.
Bottom edge of
Bottom edge of
m°we_
°und
A--"['_'""U
GroundLine
_'"'_7"-_-
• When distance "D" is 1/8" to 1/2" lower
at front than rear, tighten nuts "F"
against trunnion on both front links.
• To raise front of mower, loosen nut "F"
from trunnion on both front links.
Tighten nut "E" on both front links an
equal number of turns.
• When distance "D" is 1/8" to 1/2" lower
at front than rear, tighten nut "F"
against trunnion on both front links.
• Recheck
side-to-side
adjustment.
'D"
Both Front Links Should be Equal in Length
Suspension
Lift Link Adjustment Nut
FRONT-TO-BACK
ADJUSTM
ENT
IMPORTANT:
Deck must be level side-to
side. If the following
front-to-back
adjustment is necessary,
be sure to
adjust both front links equally so mower
will stay level side-to-side.
To obtain the best cutting results, the
mower housing should be adjusted so
that the front is approximately
1/8" to 1/2"
lower than the rear when the mower is in
its highest position.
Check adjustment on right side of tractor.
Measure
distance "D" directly in front
and behind the mandrel at bottom edge
of mower housing as shown.
• Before making any necessary adjust-
ments, check that both front links are
equal in length.
Both links should be
approximately
10-3/8".
• If links are not equal in length,
adjust
one link to same length as other !ink.
• To lower front of mower loosen nut "E"
on both front links an equal number of
turns.
Nut
_A
Front Unks
TO REPLACE MOWER BLADE
DRIVE BELT
The mower blade drive belt may be
replaced without tools.
Park the tractor
on level surface.
Engage parking brake.
BELT REMOVAL-
• Remove
mower from tractor (See 'q'O
REMOVE
MOWER"
in this section of
this manual).
• Work belt off both mandrel pulleys and
idler pulleys.
• Pull belt away from mower.
BELT INSTALLATION
-
• Install new belt in reverse order of
removal.
• Make sure belt is in all pulley grooves
and inside all belt guides.
• Install mower in reverse
order of
removal
instructions.

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